Metric Buna O-Rings

OneMonroe’s Metric Buna O-Rings are engineered to provide reliable sealing performance across a variety of industrial and commercial applications. Made from high-quality Buna-N (Nitrile) rubber, these O-rings are known for their excellent resistance to oils, fuels, and other petroleum-based products, making them ideal for use in environments where durable, leak-proof seals are essential. Buna-N’s resilient properties allow it to maintain its integrity even in challenging temperatures, ranging from -40°F to 250°F, ensuring these O-rings can withstand both low and high-stress conditions with ease. With a broad range of metric sizes available, OneMonroe ensures you’ll find the right fit for your exact specifications.

Our Metric Buna O-Rings are crafted to offer outstanding resistance to abrasion and tearing, providing long-lasting performance in rigorous applications. This makes them well-suited for automotive, aerospace, marine, and hydraulic systems, as well as in general maintenance and repair settings. The unique chemical composition of Buna-N allows these O-rings to endure pressure and friction over extended periods without compromising their sealing capabilities, making them a reliable choice for static and dynamic sealing tasks. Each O-ring is manufactured to precise industry standards, ensuring a dependable fit and function in every installation.

With OneMonroe, you’re getting more than just a product; you’re receiving a commitment to quality and expertise. Our team is dedicated to supporting your projects with high-quality metric Buna O-Rings that meet both industry standards and specific customer requirements. We provide technical support to help you select the best O-ring for your application, offering detailed product specifications and guidance. Trust OneMonroe to deliver durable, efficient, and cost-effective sealing solutions tailored to meet the demands of your unique projects.

For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.

Item #	IntegrationID	Type	Material	Cross Reference	Cross Section Width	Durometer	Inside Diameter
8.76 X 1.8 B-90	N/A 117846	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.80 mm	N/A 90	N/A 8.76 mm
9x1.80B70	N/A 117847	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.80 mm	N/A 70	N/A 9.00 mm
9 X 1.8 B-90	N/A 117848	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.80 mm	N/A 90	N/A 9.00 mm
9.5x1.80B70	N/A 117849	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.80 mm	N/A 70	N/A 9.50 mm
9.5 X 1.8 B-90	N/A 117850	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.80 mm	N/A 90	N/A 9.50 mm
12.5x1.80B70	N/A 117853	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.80 mm	N/A 70	N/A 12.50 mm
12.5 X 1.8 B-90	N/A 117854	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.80 mm	N/A 90	N/A 12.50 mm
13.2x1.80B70	N/A 117855	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.80 mm	N/A 70	N/A 13.20 mm
13.2 X 1.8 B-90	N/A 117856	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.80 mm	N/A 90	N/A 13.20 mm
14x1.80B70	N/A 117857	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.80 mm	N/A 70	N/A 14.00 mm
14 X 1.8 B-90	N/A 117858	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.80 mm	N/A 90	N/A 14.00 mm
15x1.80B70	N/A 117859	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.80 mm	N/A 70	N/A 15.00 mm
15 X 1.8 B-90	N/A 117860	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.80 mm	N/A 90	N/A 15.00 mm
16x1.80B70	N/A 117861	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.80 mm	N/A 70	N/A 16.00 mm
16 X 1.8 B-90	N/A 117862	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.80 mm	N/A 90	N/A 16.00 mm
17x1.80B70	N/A 117863	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.80 mm	N/A 70	N/A 17.00 mm
17 X 1.8 B-90	N/A 117864	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.80 mm	N/A 90	N/A 17.00 mm
8.92 X 1.83 B-70	N/A 117865	N/A Metric Standard O-Ring	N/A Buna	N/A 904	N/A 1.83 mm	N/A 70	N/A 8.92 mm
8.92 X 1.83 B-90	N/A 117866	N/A Metric Standard O-Ring	N/A Buna	N/A 904	N/A 1.83 mm	N/A 90	N/A 8.92 mm
10.52 X 1.83 B-70	N/A 117867	N/A Metric Standard O-Ring	N/A Buna	N/A 905	N/A 1.83 mm	N/A 70	N/A 10.52 mm
10.52 X 1.83 B-90	N/A 117868	N/A Metric Standard O-Ring	N/A Buna	N/A 905	N/A 1.83 mm	N/A 90	N/A 10.52 mm
2.4x1.90B70	N/A 117869	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.90 mm	N/A 70	N/A 2.40 mm
2.4 X 1.9 B-90	N/A 117870	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.90 mm	N/A 90	N/A 2.40 mm
2.6x1.90B70	N/A 117871	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.90 mm	N/A 70	N/A 2.60 mm
2.6 X 1.9 B-90	N/A 117872	N/A Metric Standard O-Ring	N/A Buna	N/A	N/A 1.90 mm	N/A 90	N/A 2.60 mm

N/A
117846

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.80 mm

N/A 90

N/A 8.76 mm

9x1.80B70

N/A
117847

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.80 mm

N/A 70

N/A 9.00 mm

9 X 1.8 B-90

N/A
117848

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.80 mm

N/A 90

N/A 9.00 mm

9.5x1.80B70

N/A
117849

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.80 mm

N/A 70

N/A 9.50 mm

9.5 X 1.8 B-90

N/A
117850

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.80 mm

N/A 90

N/A 9.50 mm

12.5x1.80B70

N/A
117853

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.80 mm

N/A 70

N/A 12.50 mm

12.5 X 1.8 B-90

N/A
117854

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.80 mm

N/A 90

N/A 12.50 mm

13.2x1.80B70

N/A
117855

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.80 mm

N/A 70

N/A 13.20 mm

13.2 X 1.8 B-90

N/A
117856

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.80 mm

N/A 90

N/A 13.20 mm

14x1.80B70

N/A
117857

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.80 mm

N/A 70

N/A 14.00 mm

14 X 1.8 B-90

N/A
117858

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.80 mm

N/A 90

N/A 14.00 mm

15x1.80B70

N/A
117859

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.80 mm

N/A 70

N/A 15.00 mm

15 X 1.8 B-90

N/A
117860

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.80 mm

N/A 90

N/A 15.00 mm

16x1.80B70

N/A
117861

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.80 mm

N/A 70

N/A 16.00 mm

16 X 1.8 B-90

N/A
117862

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.80 mm

N/A 90

N/A 16.00 mm

17x1.80B70

N/A
117863

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.80 mm

N/A 70

N/A 17.00 mm

17 X 1.8 B-90

N/A
117864

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.80 mm

N/A 90

N/A 17.00 mm

8.92 X 1.83 B-70

N/A
117865

N/A Metric Standard O-Ring

N/A Buna

N/A 904

N/A 1.83 mm

N/A 70

N/A 8.92 mm

8.92 X 1.83 B-90

N/A
117866

N/A Metric Standard O-Ring

N/A Buna

N/A 904

N/A 1.83 mm

N/A 90

N/A 8.92 mm

10.52 X 1.83 B-70

N/A
117867

N/A Metric Standard O-Ring

N/A Buna

N/A 905

N/A 1.83 mm

N/A 70

N/A 10.52 mm

10.52 X 1.83 B-90

N/A
117868

N/A Metric Standard O-Ring

N/A Buna

N/A 905

N/A 1.83 mm

N/A 90

N/A 10.52 mm

2.4x1.90B70

N/A
117869

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.90 mm

N/A 70

N/A 2.40 mm

2.4 X 1.9 B-90

N/A
117870

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.90 mm

N/A 90

N/A 2.40 mm

2.6x1.90B70

N/A
117871

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.90 mm

N/A 70

N/A 2.60 mm

2.6 X 1.9 B-90

N/A
117872

N/A Metric Standard O-Ring

N/A Buna

N/A

N/A 1.90 mm

N/A 90

N/A 2.60 mm